Table 3-6 



Results of Statistical Testing for Significant Differences 



in Chemical Concentrations in Body Tissues of Leptocheirus 



Collected at New London, July 1987 









Variable 



















PCBs 



Station 



Cd 



Pb 



Cu 



Fe 



Ha 



fas Aroclor 1254) 



CTR #1 



na 



ns 



- 



- 



ns 



ns 



CTR #2 



na 



+ 



+ 



- 



ns 



ns 



800SE 



na 



ns 



ns 



ns 



ns 



ns 



400NW 



na 



ns 



- 



ns 



ns 



ns 



400SE 



na 



+ 



+ 



+ 



ns 



ns 



1500NW 



na 



ns 



+ 



+ 



ns 



- 



+ = concentrations significantly higher than Reference 

 animals (p < 0.05, Mann-Whitney U-test) 



- = concentrations significantly less than Reference animals 

 (p < 0.05, Mann-Whitney U-test) 



ns = no significant difference between station value and 

 Reference value (p > 0.05, Mann-Whitney U-test) 



na = not applicable, statistical tests were not performed 

 because of varying analytical detection limits 



